Amaranthus spinosus

Family:AMARANTHACEAE
Species:Amaranthus spinosus Linnaeus
Common Name:Spiny Amaranth; Thorny Amaranth
Habitat:Disturbed areas. Fields, roadsides, along railroad tracks, stock pens.
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Annual
Category:Vascular
USDA Symbol:AMSP
Plant Notes:Spiny Amaranth is an introduced herbaceous annual in the Amaranth family (Amaranthaceae). It is native to the lowlands of tropical America, but it is now a pantropical weed occurring in warmer areas worldwide. It Alabama it can be found statewide. Spiny Amaranth grows in fields and gardens, in pastures and livestock pens, along roads and railroads, along rivers and lakes, and in other disturbed habitats. It is an annual with a tap root. Stems are erect, glabrous or slightly pubescent, often reddish in color, and much branched. There are a pair of spines at each node. Leaves are alternate, petiolate, ovate to lanceolate in outline, with entire margins. Flowers are unisexual. Staminate flowers are produced in simple or compound terminal spikes. Pistillate flowers are produced in axillary clusters. Flowers are non-showy, and have 5 greenish teapls. The fruit is a utricle (a dry one-seeded fruit enclosed in a papery sack-like structure). Spiny Amaranth leaves and seed are collected and eaten in several countries. It is a serious competitor in row crops, and has been called the world's 15th worst agricultural weed. Because of the spines, livestock and other large herbivores avoid it. Spiny Amaranth can serve as a host for fungi, viruses, and nematodes that attack cultivated plants. Spiny Amaranth is often defoliated by the Amaranth flea beetle (Disonycha glabrata), which is being investigated as a biological control.--A. Diamond
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyAMARANTHACEAE - Amaranth family
Genus Amaranthus
Species Amaranthus spinosus Linnaeus - Spiny Amaranth; Thorny Amaranth

Citation

Citation AMARANTHUS SPINOSUS Linnaeus, Sp. Pl. 991. 1753.
Basionym: **
Type: INDIA: Without data (lectotype: LINN 1117.27). Lectotypified by Fawcett & Rendle, Fl. Jamaica 3: 130. 1914.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Amaranthus caracasanus Humboldt, Bonpland & Kunth, Nov. Gen. Sp. Pl. 2: 195. 1817. VENEZUELA: Distrito Federal: "Crescit in ripa fluvii Catoche prope urbem Caracas", Jan, Humboldt & Bonpland s.n. (holotype: P).
Amaranthus diacanthus Fl. Ludov. 31. 1817.  
Amaranthus spinosus var. viridicaulis Flora 25(2, Beibl.): 20. 1842.  
Amaranthus spinosus forma inermis Fl. Schutzgeb. Suedsee 305. 1900.  
Amaranthus spinosus var. basiscissus Ascherson et al., Syn. Mitteleur. Fl. 5: 269. 1914.  
Amaranthus spinosus var. circumscissus Ascherson et al., Syn. Mitteleur. Fl. 5: 269. 1914.  
Amaranthus spinosus var. indehiscens Ascherson et al., Syn. Mitteleur. Fl. 5: 269. 1914.  
Amaranthus spinosus var. purpurascens de Candolle, Prodr. 13(2): 261. 1849.  
Amaranthus spinosus var. rubricaulis Flora 25(2, Beibl.): 20. 1842.  
Galliaria spinosa Amer. Midl. Naturalist 3: 278. 1914.Amaranthus spinosus Linnaeus 1753. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Baldwin, Bibb, Blount, Bullock, Butler, Calhoun, Chambers, Cherokee, Chilton, Choctaw, Clarke, Clay, Coffee, Colbert, Conecuh, Covington, Crenshaw, Dale, Dallas, DeKalb, Elmore, Etowah, Franklin, Geneva, Hale, Henry, Jackson, Jefferson, Lauderdale, Lawrence, Lee, Limestone, Marengo, Marion, Marshall, Mobile, Monroe, Montgomery, Morgan, Perry, Pike, Randolph, Shelby, Tallapoosa, Tuscaloosa, Walker, Winston

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AMAL, AUA, JSU, SAMF, TROY, UNA, UNAF, USAM, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
UWAL0000078 Mobile 04 Jul 2007 Spaulding, D.D.
12680
UWAL
Amaranthus spinosus L.
AUA000026533 Pike 23 AUG 1994 DIAMOND, JR., ALVIN R.
9312
AUA
AMARANTHUS SPINOSUS L.
UNAF0000195 Lauderdale 21 Jul 1980 Cox, Cathy
s.n.
UNAF
Amaranthus spinosus Linnaeus
UWAL0016299 Pike 12 Aug 2014 Diamond, Alvin R.
25433
UWAL
Amaranthus spinosus Linnaeus
JSU113828 Clay 15 Oct 1994 J. M. Ballard
5305
JSU
Amaranthus spinosus Linnaeus
TROY000013742 Calhoun 25 Jun 1969 Kenneth E. Landers
s.n.
TROY
Amaranthus spinosus Linnaeus
JSU113822 Calhoun 25 Jun 1969 K. E. Landers
s.n.
JSU
Amaranthus spinosus Linnaeus
AUA000026497 Clarke 22 SEP 1973 BEDWELL, D. R.
096
AUA
AMARANTHUS SPINOSUS L.
AUA000026499 Colbert 17 JUL 1965 LANDERS, KENNETH E.
AUA
AMARANTHUS SPINOSUS L.
JSU113818 Blount 13 Oct 1984 C. F. Nixon
918
JSU
Amaranthus spinosus Linnaeus
UWAL0037851 Limestone 04 Jul 2017 Spaulding, Daniel D.
14821
UWAL
Amaranthus spinosus L.
AMAL00010494 Hale 12 Jul 2008 Daniel D. Spaulding
13000
AMAL
Amaranthus spinosus Linnaeus
JSU113816 Bibb 31 Jul 1998 R. D. Whetstone
19657
JSU
Amaranthus spinosus Linnaeus
UWAL0012652 Monroe 25 Sep 2012 Spaulding, Dan
13648
UWAL
Amaranthus spinosus Linnaeus
TROY000014510 Butler 23 Aug 2007 Alvin R. Diamond
17930
TROY
Amaranthus spinosus Linnaeus
AUA000026525 Lee 20 JUL 1966 ROGERS, KENNETH E.
AUA
AMARANTHUS SPINOSUS L.
AUA000026512 Henry 29 JUL 1970 MOORE, HAROLD D.
468
AUA
AMARANTHUS SPINOSUS L.
UWAL0017291 Lawrence 15 Sep 2013 England, J. Kevin
4538
UWAL
Amaranthus spinosus Linnaeus
AUA000026510 Elmore 5 AUG 1969 REBOIS, R. V.
127A
AUA
AMARANTHUS SPINOSUS L.
JSU113819 Calhoun 26 May 1986 C. L. Lawler
583
JSU
Amaranthus spinosus Linnaeus
UNAF0000194 Jackson 14 Oct 1989 Gamble, Michael
s.n.
UNAF
Amaranthus spinosus Linnaeus
UWAL0037897 Baldwin 29 Jun 1974 LeLong, Michel G.
7994
UWAL
Amaranthus spinosus Linnaeus
USAM000000967 Baldwin 15 Jun 1974 Michel G. Lelong
7832
USAM
Amaranthus spinosus Linnaeus
AMAL00008670 Conecuh 15 Nov 2003 A. R. Diamond
14268
AMAL
Amaranthus spinosus Linnaeus
UNAF0000197 Marion 11 Jul 1984 Parker, Sherry
s.n.
UNAF
Amaranthus spinosus Linnaeus
AUA000026509 Elmore 22 MAY 1964 CREEL, JOHN
AUA
AMARANTHUS SPINOSUS L.
JSU113831 DeKalb 1 Sep 1982 Randall Black
s.n.
JSU
Amaranthus spinosus Linnaeus
UNA00033319 Mobile Jul-Oct Charles Mohr
s.n.
UNA
Amaranthus spinosus L.
JSU113825 Cherokee 7 Sep 1986 R. D. Whetstone
15634
JSU
Amaranthus spinosus Linnaeus
AUA000026498 Coffee 23 JUL 1989 DIAMOND, JR., ALVIN R.
6054
AUA
AMARANTHUS SPINOSUS L.
JSU113820 Calhoun 15 Jul 1982 R. D. Whetstone
11429
JSU
Amaranthus spinosus Linnaeus
UWAL0042840 Baldwin 06 Aug 2004 Larsen, H.S.
1151
UWAL
Amaranthus spinosus L.
SAMF0006043 Jefferson 20 Oct 2015 Davenport, L. J.
6003
SAMF
Amaranthus spinosus Linnaeus
TROY000041581 Pike 12 Aug 2014 Alvin R. Diamond
25433
TROY
Amaranthus spinosus Linnaeus
AUA000026501 Conecuh 15 NOV 2003 DIAMOND, JR., ALVIN R.
14268
AUA
AMARANTHUS SPINOSUS L.
UNAF0000196 Limestone 02 Jun 1990 Biles, Jim
s.n.
UNAF
Amaranthus spinosus Linnaeus
USAM000000970 Mobile 08 Aug 1980 Michel G. Lelong
11273
USAM
Amaranthus spinosus Linnaeus
JSU113824 Cherokee 8 Oct 1994 D. D. Spaulding
6657
JSU
Amaranthus spinosus Linnaeus
TROY000034740 Winston 02 Oct 2010 Daniel D. Spaulding
13287
TROY
Amaranthus spinosus Linnaeus
JSU113823 Calhoun 25 Jun 1969 K. E. Landers
s.n.
JSU
Amaranthus spinosus Linnaeus
AUA000026507 Dallas 24 AUG 2010 BARGER, T. WAYNE
OC456
AUA
AMARANTHUS SPINOSUS L.
AUA000026514 Jackson 4 JUL 2007 SPAULDING, DANIEL D.
12680
AUA
AMARANTHUS SPINOSUS L.
UWAL0002288 Hale 12 Jul 2008 Spaulding, Daniel D.
13000
UWAL
Amaranthus spinosus L.
AMAL00015236 Jackson 04 Jul 2007 Daniel D. Spaulding
12680
AMAL
Amaranthus spinosus Linnaeus
JSU113836 Jackson 28 Jul 1975 R. D. Whetstone
5418
JSU
Amaranthus spinosus Linnaeus
UWAL0010021 Winston 02 Oct 2010 Spaulding, Dan
13287
UWAL
Amaranthus spinosa L.
UWAL0033331 Franklin 13 Aug 2016 England, J. Kevin
6734
UWAL
Amaranthus spinosus Linnaeus
AUA000026529 Monroe 20 JUL 1983 REEVES, D. W.
113
AUA
AMARANTHUS SPINOSUS L.
AUA000026527 Limestone 4 JUL 1972 LUCKETT, LARRY
067
AUA
AMARANTHUS SPINOSUS L.
JSU113832 DeKalb 5 Jul 1969 Norma J. Beaty
s.n.
JSU
Amaranthus spinosus Linnaeus
TROY000014509 Butler 06 Jul 2007 Alvin R. Diamond
18038
TROY
Amaranthus spinosus Linnaeus
JSU113839 Marshall 2 Aug 1992 D. D. Spaulding
2523
JSU
Amaranthus spinosus Linnaeus
USAM000000965 Mobile 04 Nov 1973 Michel G. Lelong
7405
USAM
Amaranthus spinosus Linnaeus
UNA00062209 Pike 9 Oct 2003 Alvin R. Diamond
14230
UNA
Amaranthus spinosus L.
TROY000043003 Colbert 12 Jul 2014 J. Kevin England
5116
TROY
Amaranthus spinosus Linnaeus
JSU113837 Jefferson 15 Aug 1984 J. P. Barber
939
JSU
Amaranthus spinosus Linnaeus
UNA00033314 Hale 30 Jun 1966 Sherrie E. Maginness
333
UNA
Amaranthus spinosus L.
AUA000026508 Dallas 3 AUG 1976 SESSLER, ANN H.
242
AUA
AMARANTHUS SPINOSUS L.
JSU113843 Morgan 5 Aug 1974 T. A. Atkinson
503
JSU
Amaranthus spinosus Linnaeus
AMAL00001841 Winston 02 Oct 2010 Dan Spaulding
13287
AMAL
Amaranthus spinosus Linnaeus
USAM000000969 Mobile 28 Jul 1979 Michel G. Lelong
10895
USAM
Amaranthus spinosus Linnaeus
AUA000026531 Pike 8 DEC 2004 DIAMOND, JR., ALVIN R.
14918
AUA
AMARANTHUS SPINOSUS L.
JSU113833 Etowah 20 Oct 1983 R. D. Whetstone
13804
JSU
Amaranthus spinosus Linnaeus
AUA000026500 Conecuh 17 JUL 1969 WEAVER, JIMMY
084
AUA
AMARANTHUS SPINOSUS L.
AUA000026503 Covington 20 AUG 1970 MOORE, HAROLD D.
743
AUA
AMARANTHUS SPINOSUS L.
UNAF0000199 Lauderdale 22 Jul 1980 Bell, Skip
s.n.
UNAF
Amaranthus spinosus Linnaeus
USAM000000966 Mobile 04 Sep 1969 Michel G. Lelong
5249
USAM
Amaranthus spinosus Linnaeus
UNA00033354 Lee 7 Sep 1980 B. Latham
13
UNA
Amaranthus spinosus L.
JSU113826 Choctaw 1 Nov 1997 R. D. Whetstone
19026
JSU
Amaranthus spinosus Linnaeus
UNA00033309 Dallas 18 Aug 1978 L. J. Davenport
760
UNA
Amaranthus spinosus L.
JSU113840 Marshall 29 Jun 1992 D. D. Spaulding
2166
JSU
Amaranthus spinosus Linnaeus
TROY000045539 Marengo 19 Jul 2012 J. Kevin England
3721
TROY
Amaranthus spinosus Linnaeus
JSU113829 Colbert 17 Jul 1965 K. E. Landers
s.n.
JSU
Amaranthus spinosus Linnaeus
AUA000026513 Henry 2 NOV 1980 BEARD, BEN
104
AUA
AMARANTHUS SPINOSUS L.
AUA000026534 Tallapoosa 28 JUN 1969 THORNHILL, RANDY
059
AUA
AMARANTHUS SPINOSUS L.
USAM000000968 Baldwin 20 Oct 1975 Michel G. Lelong
8874
USAM
Amaranthus spinosus Linnaeus
AMAL00019842 Monroe 25 Sep 2012 Dan Spaulding
13648
AMAL
Amaranthus spinosus Linnaeus
TROY000000818 Conecuh 15 Nov 2003 Alvin R. Diamond
14268
TROY
Amaranthus spinosus Linnaeus
AUA000026530 Perry 8 SEP 1976 SESSLER, ANN H.
554
AUA
AMARANTHUS SPINOSUS L.
AUA000026532 Pike 12 AUG 1973 KRAL, ROBERT
51199
AUA
AMARANTHUS SPINOSUS L.
UWAL0015683 Bullock 18 Jul 2012 Dykes, Bailee
1021
UWAL
Amaranthus spinosus L.
AUA000026515 Jefferson 10 MAY 1965 WRIGHT, LARRY
AUA
AMARANTHUS SPINOSUS L.
JSU113834 Etowah 12 Jun 1994 L. M. Hodge
2379
JSU
Amaranthus spinosus Linnaeus
UWAL0035917 Blount 06 Jul 2015 Anderson, Kelly
0878
UWAL
Amaranthus spinosus L.
JSU113841 Morgan 15 Sep 1996 D. D. Spaulding
9159
JSU
Amaranthus spinosus Linnaeus
TROY000036512 Bullock 18 Jul 2012 Bailee Dykes
1021
TROY
Amaranthus spinosus Linnaeus
UNA00064310 Pike 8 Dec 2004 Alvin R. Diamond
14918
UNA
Amaranthus spinosus L.
TROY000044983 Geneva 28 Sep 2017 Cameron Byrd
1565
TROY
Amaranthu spinosus Linnaeus
AUA000026496 Choctaw 15 JUL 1995 CROUCH, VIRGINIA E.
1442
AUA
AMARANTHUS SPINOSUS L.
TROY000014508 Monroe 20 Sep 2007 Alvin R. Diamond
18242
TROY
Amaranthus spinosus Linnaeus
AUA000026516 Jefferson 28 JUL 1977 SESSLER, ANN H.
1748
AUA
AMARANTHUS SPINOSUS L.
JSU113835 Etowah 10 Aug 1974 T. A. Atkinson
592
JSU
Amaranthus spinosus Linnaeus
AMAL00005605 Walker 20 Jul 2002 D.D. Spaulding
11458
AMAL
Amaranthus spinosus Linnaeus
JSU139153 Shelby 11 Oct 1997 D. D. Spaulding
10155
JSU
Amaranthus spinosus Linnaeus
AUA000026504 Crenshaw 3 SEP 1995 DIAMOND, JR., ALVIN R.
9908
AUA
AMARANTHUS SPINOSUS L.
USAM000000964 Baldwin 29 Jun 1974 Michel G. Lelong
7994
USAM
Amaranthus spinosus Linnaeus
JSU113838 Lauderdale 20 Jul 1996 R. D. Whetstone
18248
JSU
Amaranthus spinosus Linnaeus
AUA000026528 Marengo 28 AUG 1969 MOORE, HAROLD D.
688-69
AUA
AMARANTHUS SPINOSUS L.
JSU113821 Calhoun 26 May 1986 C. L. Lawler
583
JSU
Amaranthus spinosus Linnaeus
TROY000022890 Jackson 04 Jul 2007 Daniel D. Spaulding
12680
TROY
Amaranthus spinosus Linnaeus
UNA00062213 Conecuh 15 Nov 2003 Alvin R. Diamond
14268
UNA
Amaranthus spinosus L.
UWAL0013493 Marengo 19 Jul 2012 England, J. Kevin
3721
UWAL
Amaranthus spinosus Linnaeus
SAMF0003699 Blount 06 Aug 2009 Davenport, L. J.
4006
SAMF
Amaranthus spinosus Linnaeus
USAM000000963 Baldwin 15 Jun 1974 Michel G. Lelong
7838
USAM
Amaranthus spinosus Linnaeus
AUA000026505 Dale 23 JUL 1989 DIAMOND, JR., ALVIN R.
6082
AUA
AMARANTHUS SPINOSUS L.
TROY000031979 Montgomery 16 Sep 2010 Alvin R. Diamond
21594
TROY
Amaranthus spinosus Linnaeus
AUA000026493 Bibb 16 SEP 1976 SESSLER, ANN H.
684
AUA
AMARANTHUS SPINOSUS L.
JSU113830 DeKalb 5 Jul 1969 Sherry Wright
s.n.
JSU
Amaranthus spinosus Linnaeus
UNA00033304 Tuscaloosa 10 Aug 1985 Charles N. Horn
737
UNA
Amaranthus spinosus L.
TROY000035309 Hale 12 Jul 2008 Daniel D. Spaulding
13000
TROY
Amaranthus spinosus Linnaeus
AUA000026495 Chilton 27 JUL 2005 DIAMOND, JR., ALVIN R.
15556
AUA
AMARANTHUS SPINOSUS L.
AMAL00020559 Marengo 19 Jul 2012 J. Kevin England
3721
AMAL
Amaranthus spinosus Linnaeus
JSU113814 Baldwin 17 Oct 1982 R. D. Whetstone
12893
JSU
Amaranthus spinosus Linnaeus
AUA000026494 Chambers 9 NOV 1975 WILKINS, DAVID H.
206
AUA
AMARANTHUS SPINOSUS L.
UNAF0000198 Lauderdale 21 Jul 1980 Daly, Robert
s.n.
UNAF
Amaranthus spinosus Linnaeus
UWAL0037759 Baldwin 15 Jun 1974 Lelong, Michel G.
7838
UWAL
Amaranthus spinosus L.
UWAL0017141 Colbert 12 Jul 2014 England, J. Kevin
5116
UWAL
Amaranthus spinosus Linnaeus
AUA000026492 Baldwin 3 JUL 1970 ROGERS, NORMAN
066
AUA
AMARANTHUS SPINOSUS L.
JSU113817 Blount 17 Aug 1997 J. M. Ballard
7381
JSU
Amaranthus spinosus Linnaeus
AMAL00016174 Pike 08 Dec 2004 A. R. Diamond
14918
AMAL
Amaranthus spinosus Linnaeus
JSU113815 Bibb 25 Sep 1998 K. R. Brodeur
1482
JSU
Amaranthus spinosus Linnaeus
AUA000026522 Lee 16 JUL 1970 BURROUGH, THOMAS A.
071
AUA
AMARANTHUS SPINOSUS L.
JSU113844 Randolph 2 Aug 1986 C. F. Nixon
2554
JSU
Amaranthus spinosus Linnaeus
UNA00054419 Blount 27 Jun 1998 Brian R. Keener
1124
UNA
Amaranthus spinosus L.
AUA000026526 Lee 1 JUL 1969 MILLER, L. C.
084
AUA
AMARANTHUS SPINOSUS L.
JSU113842 Morgan 5 Aug 1974 R. D. Whetstone
3355
JSU
Amaranthus spinosus Linnaeus
AUA000026506 Dale 26 AUG 1992 DIAMOND, JR., ALVIN R.
8415
AUA
AMARANTHUS SPINOSUS L.
JSU113827 Clarke 13 Sep 1997 R. D. Whetstone
18791
JSU
Amaranthus spinosus Linnaeus
TROY000013741 Chilton 27 Jul 2005 Alvin R. Diamond
15556
TROY
Amaranthus spinosus Linnaeus
AUA000026502 Covington 6 AUG 1972 NELSON, JON
168
AUA
AMARANTHUS SPINOSUS L.
AUA000026524 Lee 12 MAY 1969 MOORE, HAROLD D.
220-69
AUA
AMARANTHUS SPINOSUS L.
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